Replacement flashing for weatherhead

Abstract

A prefabricated flashing for a weatherhead or other pipe which protrudes through roofs of structures such as a house to prevent rain or water seepage and which is adaptable to conform when assembled to any customary degrees of roof inclinations. The flashing includes an upper half of flashing and a lower half of flashing, each of which has a lip that can be easily secured together to surround a portion of the weatherhead or other pipe which protrudes through the roof. A clamping mechanism is provided for securing the upper half of flashing and lower half of flashing to the weatherhead.

I claim: 
     
       1. A flashing for sealing a joint formed at a juncture of an inclined surface and an upstanding member protruding through said inclined surface, said flashing comprising: first and second discrete complementary members disposed for mating secured relations, each complementary member having a transverse deformable edge portion provided with a cut-out section and upstanding one of the edge portions having an upwardly extending lip, and the other of the edge portions having a downwardly extending lip; flange means adjacent said cut-out section;   said complementary members disposed for placement around opposite halves of said upstanding member with said deformable edge portions being in interlocking relation, the secured relation between said complementary members being responsive to deformation of said deformable edge portions; and   means for securing said first and second complementary members together to seal said first and second complementary members around a section of the upstanding member.   
     
     
       2. The flashing of claim 1 wherein said means for securing said first and second complementary members around the section of the upstanding member includes a resilient rubber gasket and a clamp member. 
     
     
       3. The flashing of claim 2 wherein said clamp member includes first and second C-shaped elements and nuts and bolts for connecting said C-shaped elements. 
     
     
       4. The flashing of claim 1 wherein each said upstanding flange means includes a bottom portion and a top portion which defines an opening which is larger at said bottom portion than at said top portion whereby the flashing is adaptable to inclined surfaces of a wide range of inclinations. 
     
     
       5. An improved prefabricated flashing unit for use in weatherproofing a roof penetration, said unit including first and second complementary mating half portions of flashing of generally rigid, high-strength, sheet metal; said first half portion of flashing comprising an upper and lower surface, a transversely extending edge having a first semi-cylindrical opening and a downwardly extending lip, and a first semi-cylindrical flange means secured to said upper surface adjacent said semi-cylindrical opening;   said second half portion of flashing comprising an upper surface and a lower surface, a transversely extending edge having a second semi-cylindrical opening and an upwardly extending lip, and a second semi-cylindrical flange means secured to said upper surface of said second half portion of flashing adjacent said semi-cylindrical opening of said second half portion of flashing; and   means for securing said first and second half portions of flashing together to seal said first and second half portions of flashing around the roof penetration.   
     
     
       6. The improved prefabricated flashing unit of claim 5 wherein said means for securing said first and second half portions of flashing around the roof penetration includes a resilient gasket and a clamp member. 
     
     
       7. The improved prefabricated flashing unit of claim 6 wherein said resilient gasket includes an elongated rubber member wrapped around the first and second half portions of flashing. 
     
     
       8. The improved prefabricated flashing unit of claim 7 wherein said clamp member includes first and second C-shaped elements and nuts and bolts for connecting said C-shaped elements. 
     
     
       9. The improved prefabricated flashing unit of claim 5 wherein said downwardly extending lip of said first half portion of flashing is secured to said upwardly extending lip of said second half portion of flashing. 
     
     
       10. The improved prefabricated flashing unit of claim 9 wherein each said first and second semi-cylindrical flange means of said first and second half portions of flashing includes an upstanding wall member which defines an opening for surrounding a section of the roof penetration to form an enclosure. 
     
     
       11. The improved prefabricated flashing unit of claim 10 wherein said enclosure has a top portion and a bottom portion, said enclosure being larger at said bottom portion than at said top portion whereby the perfabricated flashing unit is adaptable to roofs of a wide range of inclinations. 
     
     
       12. The improved prefabricated flashing unit of claim 11 wherein said enclosure defines an opening which is generally round at said top portion and generally oblong at said bottom portion. 
     
     
       13. An improved prefabricated flashing unit for use in weatherproofing a roof penetration, said flashing unit comprising: a first half portion of generally rigid, high strength metal, and including a plate having an upper surface, a lower surface, a transversely extending edge having a cut-away edge portion, a downwardly extending lip, and a generally semi-cylindrical stack portion extending from said upper surface of said plate adjacent said cut-away portion;   a second half portion of generally rigid, high strength metal, and including a plate having an upper surface, a lower surface, a transversely extending edge having a cut-away edge portion and an upwardly extending lip, and a generally semi-cylindrical stack portion extending from said upper surface of said plate adjacent said cut-away portion;   said downwardly extending lip of said first half portion being adapted to receive said upwardly extending lip of said second half portion for tight engagement to form the flashing unit; and   means for securing said generally semi-cylindrical stack portions to seal said first and second half portions of the flashing unit around the roof penetration.   
     
     
       14. The improved prefabricated flashing unit of claim 13 wherein said means for securing said generally semi-cylindrical stack portions of the flashing unit around the roof penetration includes a resilient gasket and a clamp member. 
     
     
       15. The improved prefabricated flashing unit of claim 14 wherein said resilient gasket includes an elongated rubber member wrapped around the first and second half portions of flashing. 
     
     
       16. The improved prefabricated flashing unit of claim 14 wherein said clamp member includes first and second C-shaped elements and nuts and bolts for connecting said C-shaped elements. 
     
     
       17. The improved prefabricated flashing unit of claim 13 wherein said downwardly extending lip of said first half portion of flashing is secured to said upwardly extending lip of said second half portion of flashing. 
     
     
       18. The improved prefabricated flashing unit of claim 17 wherein each said first and second semi-cylindrical flange means of said first and second half portions of flashing includes an upstanding wall member which defines an opening for surrounding a section of the roof penetration to form an enclosure. 
     
     
       19. The improved prefabricated flashing unit of claim 18 wherein said enclosure has a top portion and a bottom portion, said enclosure being larger at said bottom portion than at said top portion whereby the prefabricated flashing unit is adaptable to roofs of a wide range of inclinations.